Characterization of lameness in a research herd and among private herds of meat goats in the southeastern United States
A one-year study was conducted to assess types and rates of lesions associated with lameness and the effect of lameness on doe reproduction. Boer (n = 77), Kiko (n = 57), Myotonic (n = 20), Spanish (n = 64), and Savanna (n = 17) pure and crossbred meat does were used. A total of 235 does historical records for four years were used to measure herd reproductive rate and lameness season rates. The herd was semi-intensively managed on humid subtropical environments. A producer survey was conducted. Mature (79%) does had higher lameness rate than young (45%) does. Spanish does had lower rate of lameness (P < 0.05) than Savanna and Boer for the one-year evaluation. The occurrence rates of lesions for the lame does were 53% foot rot, 33% foot scald, 25% white line disease, and 25% overgrowth. White hooves had higher incidences of S, OG and WLD than black hooves; however, for foot rot black hooves had higher incidence than white hooves. Black hooves had higher (P < 0.05) locomotion score (severity of lameness) than white hooves. The response of does to treatment increased (P < 0.05) as locomotion decreased. Hind hooves had higher (P < 0.05) incidence of lameness than the front hooves. Lameness reduced (P < 0.05) litter size at birth and weaning. Based on 183 producer responses to a lameness survey the incidence of lesions were overgrowth (50.3%), scald (18.7%), foot rot (14.2%), white line disease (7.6%), unknown cause (4.2%), toe abscess (2.8%), toe granuloma (0.9%), and other causes (1%). The relative application rates of management practices against lameness included 85% hoof trimming, 32% injectable antibiotics, and 40% topical hoof application, 17% footbath, 1% footpads, and 14% used other methods. The frequency of hoof trimming in producer herds ranged from 9.8 % occurring once a year to 65% for multiple (2 to 12) scheduled trimmings per year; 6.6 % of producers only trimming goats when lame. Lameness is a problem in goat herds of the southeastern U.S. which is associated with various lesion types and impacts productivity. Preventive methods for lameness required further investigations in goats.
American studies|Animal sciences|Animal Diseases|Veterinary services
"Characterization of lameness in a research herd and among private herds of meat goats in the southeastern United States"
ETD Collection for Tennessee State University.